نتایج جستجو برای: ostriches

تعداد نتایج: 392  

2012
Colin G. Scanes

Poultry are domesticated species of birds. Birds were domesticated for eggs (chickens, ducks and geese), meat (chickens, ducks, geese, turkeys, ostriches, emus, pigeons and game birds) or other uses including feathers (ostriches, ducks and geese), leather (ostriches), specific oils (ostriches, emus), cock-fighting (chickens) and homing (pigeons). Table 1 summarizes the approximate time when and...

Journal: :The Onderstepoort journal of veterinary research 1997
D J Verwoerd G H Gerdes A Olivier R Williams

A virulent Newcastle disease virus (NDV) isolate from an outbreak in commercial poultry, with virulence indices of MDT = 47-48 h; IVPI = 2,17 and ICPI = 1,8; was used to inoculate 10x vaccinated (standard poultry vaccines) as well as 10x unvaccinated slaughter ostriches via intratracheal, ocular and nasal routes, in a controlled environment. All unvaccinated ostriches developed clinical signs (...

2013
Amanda Brentano Almeida Michelle Mayara Krindges Luiz Daniel de Barros João Luis Garcia Giovana Camillo Fernanda Silveira Flores Vogel Denise Nunes Araujo Lenita Moura Stefani Aleksandro Schafer da Silva

This study aimed to verify the occurrence of antibodies against Toxoplasma gondii in rheas (Rhea americana) and ostriches (Struthio camelus) commercially breeding in Brazil. Blood samples from 20 rheas and 46 ostriches (young and adults) were serologically tested using a technique known as modified agglutination test (MAT) at an initial titration of 1:16 for ostriches and 1:25 for rheas. Antibo...

Journal: :Memorias do Instituto Oswaldo Cruz 2001
R A Martínez-Díaz A T Castro S Herrera F Ponce

In studies carried out on the parasites infecting ostriches (Struthio camelus) in Spain, trophozoites of Retortamonas sp. have been found in the intestinal contents of 28 out of 146 slaughtered ostriches. The species infecting ostriches could not be determined from the morphological data available. However, these findings are important as they constitute the first report of the genus Retortamon...

Journal: :Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians 2012
Masoud Selk Ghaffari Amin Sabzevari Hassan Vahedi Habib Golezardy

The purpose of this study was to establish normal physiologic reference values for intraocular pressure (IOP) and Schirmer tear test (STT) results in clinically normal ostriches (Struthio camelus). Twenty ostriches of both sexes, 10 juveniles (1.5-2 yr of age) and 10 adults, were included in this study. Complete ophthalmic examination was performed prior to this investigation. STT was performed...

2007
L. C. Hoffman M. M. Brand M. Muller S.W.P. Cloete

_______________________________________________________________________________________ Abstract Live, carcass, leg and muscle weight (kg) as well as dressing percentage were compared between South African Black (Struthio camelus var. domesticus) ostriches, purebred Zimbabwean Blue Neck (Struthio camelus australis) ostriches and the progeny of Zimbabwean Blue Neck males crossed with South Afric...

Journal: :Biology letters 2017
Cynthia Faux Daniel J Field

Recent phylogenetic studies question the monophyly of ratites (large, flightless birds incorporating ostriches, rheas, kiwis, emus and cassowaries), suggesting their paraphyly with respect to flying tinamous (Tinamidae). Flightlessness and large body size have thus likely evolved repeatedly among ratites, and separately in ostriches (Struthio) and emus (Dromaius). Here, we test this hypothesis ...

Journal: :Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria 2014
Nicole Brand Ederli Francisco Carlos Rodrigues de Oliveira

One of the most common problems in breeding of ostriches in captivity is the control of parasitic diseases. This work presents keys for the identification of adult nematodes and infective larvae by morphologic and morphometric characteristics. These keys will allow the scientific community to identify the species that infect the ostriches either based on the characteristics of the posterior end...

Journal: :The Journal of parasitology 2000
J P Dubey W B Scandrett O C Kwok A A Gajadhar

Serum samples from 973 ostriches (Struthio camelus) in Canada were examined for antibodies to Toxoplasma gondii by the modified agglutination test incorporating mercaptoethanol and formalin-fixed whole tachyzoites. Twenty-eight (2.9%) of the 973 birds were found to be seropositive for antibodies to T. gondii at titers of 1:25 in 15 birds, 1:50 in 12 birds, and 1:500 in 1 bird. This is the first...

2011
Da Silva

Toxoplasmosis is one of the most widespread pathogen in the world, presenting high importance in production animals, like ostriches (Struthio camelus), and to human beings. This study was aimed to determine the prevalence of Toxoplasma gondii in ostriches from a Brazilian slaughterhouse. Serum samples of 344 ostriches slaughtered in a Brazilian slaughterhouse were researched for T. gondii antib...

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